Seiko Cal. 4427 - 597

The Seiko 4427-597 represents an important milestone in Seiko's 1970 lineup. It features a Silver dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-e107eb78340e]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1970

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